There's been movement today in Brussels, where leaders from the European Union nations are trying to save the euro and restore some faith in the financial markets that they can manage the euro zone's debt crisis. But an important division remains among the 27 nations.

"The refusal by David Cameron, UK prime minister, to agree to a full treaty change for all 27 EU members without inserting special safeguards for UK financial services caused a standoff in the early hours with Angela Merkel, German chancellor, and Nicolas Sarkozy, French president.

"Despite the division – which will leave Britain out of the new pact, with the Czech Republic, Hungary and Sweden still weighing participation – Mario Draghi, the European Central Bank president, signalled his approval, a key vote of confidence that could allow the ECB to move more aggressively in eurozone bond markets."

As for how markets will react, Bloomberg News says U.S. stock index futures rose this morning "after European leaders agreed to boost a rescue fund and tighten budget rules to stem the region's debt crisis."